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Re: [PATCH v5 3/3] xen/ppc: mm-radix: Allocate all paging structures at runtime
- To: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Mon, 30 Sep 2024 17:20:42 +0200
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- Cc: tpearson@xxxxxxxxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Mon, 30 Sep 2024 15:20:51 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 27.09.2024 00:24, Shawn Anastasio wrote:
> In the initial mm-radix implementation, the in-memory partition and
> process tables required to configure the MMU, as well as the page tables
> themselves were all allocated statically since the boot allocator was
> not yet available.
>
> Now that it is, allocate these structures at runtime and bump the size
> of the Process Table to its maximum supported value (on POWER9).
>
> Signed-off-by: Shawn Anastasio <sanastasio@xxxxxxxxxxxxxxxxxxxxx>
On the assumption that the (theoretical only?) case of there being gaps
in [min_alloc_mfn,max_alloc_mfn] if deemed okay, with it being just more
memory being mapped in such a case:
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
Jan
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